Home / 6,712.80-10,065.96-2,816.16

Finding the Fourth Proportional to 6,712.80, 10,065.96 and 2,816.16

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Solution

The fourth proportional to 6,712.80, 10,065.96 and 2,816.16 is: 4,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.80 : 10,065.96 = 2,816.16 : x
  2. Step 2: Convert to fraction form
    6,712.80/10,065.96 = 2,816.16/x
  3. Step 3: Cross multiply
    6,712.80x = 10,065.96 × 2,816.16
  4. Step 4: Simplify right side
    6,712.80x = 28,347,353.91
  5. Step 5: Solve for x
    x = 28,347,353.91/6,712.80
  6. Step 6: Final answer
    x = 4,222.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.